Gas burner having removable port-forming grid



g- 1952 1.. M. WEINANDY v 2,607,405

GAS BURNER HAVING REMOVABLE PORT-FORMING GRID I I Filed Oct. 20, 1950INVE TOR..

fihfizi/ flflomm Patented Aug. 19, 1952 I GAS BURNER HAVING REMOVABLEPORT-FORMING GRID Lee M. Weinandy," Columbus, Ohio, assignor to SurfaceCombustion Corporation, Toledo, Ohio,

a corporation of Ohio Application was 20, 1950, Serial No. 191,188

The present invention relates togas burners of the type embodyingcorrugated metal ribbons ford'efining a longitudinal series ofcontiguous gas discharge ports of relatively small size. It is desirablethat said ribbonsfshall be readily removable from the burner head forcleaning and replacement purposes and it is the object of the presentinvention to provide an improved assembly of corrugated metal ribbonsfor that purpose.

For a consideration of what I consider novel and my invention, attentionis directed to the following specification and the claims appendedthereto t In the drawings:

Fig. '1 is a plan view of a multiple head embodying the presentinvention.

Figs. 2,3,4 and 5 are somewhat 'enlarged'cross sections taken on lines2'2, 33, 4-4, and 5 5, respectively, on Fig. 1. 1 U

Fig. 6 is an enlarged sectional view of details embodied'in Fig. 4.

Fig. '7 is an enlarged sectional view of details embodied in Fig; 2. f t

I Fig; 8, is a more or less schematic view showing howa bundle ofcorrugated metal ribbons held together atone end by a pin may be openedup fan-wise for inspection and cleaning.

Fig. 9 is a perspective view of the holder wherein theribbon bundleshown in Fig. 8 is normally confined; the view being on a substantiallysmaller-scale than Fig. 8; t V

. In Fig. 1 there is illustrated a more or less conventional multiplehead burner comprising parallel main burner heads H) which are crosscon-'- nected by a relatively narrow pilot flame head I i embodying agrid 12 for producing a runner flame for' igniting the gas issuing fromthe ports or grid [3 in'each of the main burner heads Ii). The pilotflame head is in gas connection with both of the main burner heads toinsure that if gas. is'supplied toeither of 'said heads Ill, the pilotflame head I I will-always receive its quota of gas.

Each of the main burner heads may be supburner plied with gas fromindividual mixing tubes It.

It is desirable that the grid l3 of the main burner heads shall beremovable from its setting to permit inspection and cleaning of thecorrugated ribbons of which the grid is comprised and it is the objectof the present invention to provide an improved grid that may be readilydisassembled for cleaning.

In the present invention the improved grid comprises a bundle oftransversely corrugated metal ribbons l whose corrugationsdefin'elongitudinally extending rows of relatively small:

'7 Claims. (Cl. 158116) size gas ports and it also comprises a frame orholder it of U-shape form for holding said bundle of ribbons inoperative position. For descrip tive purpose said bundle is generallyindicated by reference number l1. f The metal ribbons which make up thebundle ll are held together by a single rivet or pin 18 at one end ofthe bundle, the pin having a loose fit so' that when the'bundle isremoved from its holder ltjthe ribbons may spread out fan-wise about jthe pines an axisior inspection "and cleaningmirp oses. The bundle willusually also compri'e a'plainj spacerribbon 20 between thecorrugated'ribbons depending on the form of the corrugations. v t t Theholder it for the'ribbon bundle il is adapted to be removably positionedbetween the side walls 2i of the elongate gas outlet slot in the topside of the main burner head in by insertion thereinto' from above. Thedegree to which the holder may be pushed down into the slot is limitedby overhanging flanges 22 along the upper edge of the legs or long sidewalls 23 of the holder. The holder may also be 'impositively locked inposition in said slot by one or more pimples 2:4 on the outside face ofone or both of the legs '23 of the holder for entry into a depression inthe adjacent faceof the sidewall I 2150f said 'slot, the depressionextending a substantial distance lengthwise of said wall to provide astiffeningrib 25 along the outer face of said wall, itbeing understoodthat the main body of the burner head is' made of sheet metal. The

loweredge of the, legs 23 of the holder 16 may i be bent inwardly a fewdegrees as indicated at 26 to facilitateready insertionof the holder insaid gas'outlet 'slotof the burner head. v

The end wall which forms the closed end of the U -shape frame or holderI6 is indicated at 2'1 and has'upp'er and lower tabs 28 and 29 whichextendhorizontally between the legs 23 of said frame to form a socketwhereinto the looseend 30 of the ribbon bundle I1. is slidablysupported.

The other orpin end 3| of said bundle is detachably supported at theopen end of said frame by means consisting of transversely'alinedapertures 32 in the legs '23 of said frame for receivin the oppositeterminalendsor heads .33 of said pin I8, it being noted that saidterminal ends orheads do not extend beyond the outer face of. the legs23 of the holder and therefore do not in any way interfere with thefree'insertion of said holder into or with its free removal from theburner head slot nor with the ready removal of the ribbon bundle fromsaid holder after the latter has been removed from said slot and spreadapart. The bundle I! is supported in said holder I 6 with its loose end30 sufficiently remote from the end wall 2! of the U-shape frame topermit free thermal expansion of the ribbons of said bundle in adirection towards said end Wall. The pin end 3| of the ribbon bundle isdisposed nextradjacent to the pilot flame head H to insure, readyignition by the flame from the latter of the gas issuing from saidbundle I7, it being noted that pin end of the bundle terminatessubstantially flush with the adjacent terminal end of the holder 16.

From the foregoing description, it will be apparent that the presentinvention provides a ribbon type of burner grid that is well adapted forits intended purpose. It will also be understood that the improved gridis not limited in its application to multiple burner heads and thereforethat no limitations as to its application are intended except as statedin the appended claims.

What I claim is: v

1. In a gas burner, in combination, a hollow head to receive the gas tobe burned andhaving walls forming an elongate slot communicating withthe interior of said head to form an elongate outlet for the gas, abundle of port-forming metal ribbons held together at one end by a pinand being otherwise unsecured to each other, a U-shape frame removablypositioned in said slot for holding said bundle in said outlet to formagrid for dividing the latter into a, plurality of relatively small-sizegas-discharge ports, and means atthe closed end of said frame forslidably supporting the loose end of the bundle, said pin havingrelatively short terminal extensions and the legs of said frame adjacenttheir free ends having transversely alined apertures to receive theterminal extensions of said pin for holding the pin in fixed positionrelative to said frame, whereby upon removal of said frame from saidslot said bundle may be readily removed from said frame by spreadingsaid legs apart at their free ends.

2. An article of manufacture for a gas burner having a hollow head toreceive the gas to be burned and having walls forming an elongate slotcommunicating with the interior of the head to, form an elongate outletfor the gas, said article comprising, in combination, a bundle ofportforming metal ribbons held together atone end by a pin and beingotherwise unsecured to each other, a U-shape frame adapted to beremovably positioned'in said slot for holding said bundle in said outletto form a grid for dividing the latter into a multiplicity of relativelysmall-size gasdischarge ports, means at the closed end of the frame forslidably supporting the loose end of said bundle, said pin havingrelatively short terminal extensions and the legs of said frame havingata point adjacent their free ends alined apertures to receive theterminal extensions of [said pin whereby to hold said pin in fixedposition relative to saidframe when the free ends of said legs are incontact with the adjacent sides of said bundle but not otherwise wherebyon thefree ends of said legs being spread apart the pin is automaticallydisengaged from said apertures.

3. An article of manufacture for a gas burner,

having a hollow head to receive the gas to be burned. and having anelongate slot communicating with the interior of the head to form anoutletforthe gas, said article comprising, in combination, a bundle ofmetal ribbons adapted to provide a multiplicity ofrelatively small-sizegas discharge ports between their adjacent sides, a

relatively small-size gas-discharge ports, means at the closed end ofsaid frame for slidably supporting one end of said bundle, a pinextending through the-other end of :said bundlgindepend- 'ently of saidframe for holding that end of the bundle together, and means comprisingthe legs of said frame for interlocking with the terminal ends of saidpin to hold said pin in fixed position relative to said frame when thefree ends of said legs are in contact with the adjacent sides of saidbundle but not otherwise, whereby on the free ends of said-legs beingspread apart said pin is disengaged from said legs thereby permittingready removal of said bundle from said frame.

4. An article of manufacture for a gas burner having an elongate hollowhead to receive the gas to be burned and having an elongate slotcommunicating with theinterior of said head to form an elongate outletfor the gas, said article comprising. an elongate, bundle ofport-forming members, an elongate frame comprising side walls adapted tobe positioned in said slot with said bundle extending longitudinallybetween said side walls whereby said outlet is divided by said bundleinto a series of relatively small-size ports, the said side walls havinga pair of transversely alined apertures near one end of said frame, anda pin extending through said bundle with the ends of the pin projectinginto said apertures, the pin being of less length than the width of saidslot and being disengageable from said apertures by a spreading movementof said side walls, and means carried by said frame for slidablysupporting that end of said bundle most remote from said pin.

5. In a gas burner, in combination, an elongate hollow head to receivethe gas to be burned and having walls forming an elongate slotcommunicating with the interior ofthe head to form an elongate outletfor the gas, an elongate bundle of port-forming ribbons, an elongateU-shape frame adapted to be positioned in said slot with said bundleextending longitudinally between the legs of said framewhereby saidoutlet is divided by said bundle into a longitudinalseries of relativelysmall-size ports, the legs of said frame remote from the closed end ofthe frame having'a pair of transversely alined apertures, a pinextending through said bundle with its ends projecting into said alinedapertures, the pin being disengagablefrom said apertures by a spreadingmovement of the free ends of said legs upon removal of said frame fromsaid slot to facilitate ready removal of said bundle from said frame,and means at the closed end of said frame for supporting the adjacentend of the bundle.

6'. In a gas burner, in combination, an elongate hollow head to receivethe gas to be burned and having walls forming an elongate slot communieeating with the interior of the head to form an elongate outlet for thegas, an elongate'bundle of port-forming members, an elongate framecomprising laterally spaced side walls adapted to be positioned in saidslot with said bundle extending longitudinally between said side wallswhereby said outlet is divided by said bundle into a series ofrelatively small-size ports, the said walls having a pair oftransversely alined apertures intermediate the ends of said frame, andapin extending through said bundle with its ends projecting intosaid-apertures, said pin being of less length than the width of saidslot and being disengagable from said apertures by a spreading movementof said side walls upon removal of said frame from said slot tofacilitate ready removal of said bundle from said frame.

7. A gas burner having an elongate hollow head and comprising wall meansforming therebetween an elongate slot communicating with the interior ofsaid head, said wall means having a pair of transversely alignedapertures, a bundle of portforming members positioned in said slot, anda pin extending through said bundle and having a head at each end toretain said members and projecting into said apertures for removablysupporting said bundle in said slot.

LEO M. WEINANDY.

REFERENCES CITED The following references are of record in the file ofthis patent:

5 UNITED STATES PATENTS Number Name Date 2,235,635 Herman Mar. 18, 19412,251,710 Livar Aug. 5, 1941 FOREIGN PATENTS Number Country Date 632,603France Oct. 10, 192'?

